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#1 Reason to work with CCTaxandBooks Taxes and Bookkeeping for Small Businesses in Boulder, Weld, Jefferson, and Broomfield counties:
We Ease Your Pain
Casillas CPA for Taxes, Payroll, and Bookkeeping Relief
We’re a small, honest team that won’t break the bank. Certified QuickBooks experts, we handle taxes, bookkeeping, and payroll for small businesses, big companies, and individuals—putting you first so you can focus on what matters.
★★★★★
Beatriz helped us stay in compliance with our payroll, and tips. She taught us how to manage our tip system for our staff to stay in compliance with tax law and ensure we had a legal paper trail in case we were audited, we have peace of mind that our accounting system is bullet proof and accurate. Thanks CCTax and Books, and Thanks Beatriz, you know your stuff!
Raza Fresa - Niwot, CO
Our Services
Total Accounting: Bookkeeping, Payroll, to Taxes, covered.
Bookkeeping Services
Cash Flow Clarity: Know exactly where your money goes.
Spotless Records: Accurate Books, always up-to-date.
Fast Financial Fixes: Catch Issues before they grow.
Tax Preparation
Save Time: We handle taxes and filings.
Keep More Cash: Deductions and updates maximized.
Stay Penalty Free: Precision beats errors
English or Spanish: Clear help, your language.
Stress Less: Pros keep you compliant.
Lower Penalties: Skilled talks reduce what you owe.
About Us
Beatriz Casillas, Your local CPA
Roots & Resilience: Immigrated from Mexico in 1999 with a fierce determination to build a successful career in the U.S.
Education: Graduated with an accounting degree from the University of Colorado Boulder’s Leeds School of Business, laying the groundwork for excellence.
Trusted Expertise: Earned her CPA license in Colorado in 2007, a testament to her reliability and deep knowledge.
Starting Strong: Launched her career at Clifton Gunderson LLP, mastering financial audits, internal controls, and GAAP compliance through hands-on fieldwork and data analysis.
Public Sector Impact: Elevated to the Colorado Office of the State Auditor, where she audited health agencies, ensuring financial accuracy, regulatory compliance, and operational efficiency.
Leadership in Assurance: Advanced to Assurance Senior Associate at CliftonLarsonAllen (CLA), leading audit planning, execution, and reporting while upholding GAAP, PCAOB, and top-tier standards.
Defense & Precision: Rose to Supervisor at the Department of Defense’s Defense Contract Audit Agency (DCAA), overseeing critical financial and compliance audits of defense contractors, enforcing FAR and CAS standards, and delivering insights to protect taxpayer dollars.
CCTaxandBooks
Client Feedback
Hear from our satisfied clients about their experiences with us.
My name is Paco, and I come from Mexico. I am the proprietor of Vision Maintenance, a company based in Boulder, Colorado. My business specializes in a range of services, including snow removal, painting, landscaping, and construction projects. I have the privilege of working with Beatriz, a highly skilled certified public accountant, who has provided invaluable support. Initially, I faced challenges with delayed invoicing and disorganized financial records, but Beatriz addressed these issues with remarkable speed and efficiency. I wholeheartedly endorse their services. Should you require assistance with financial management or strategic business planning, they are an exceptional resource.
Vision Maintenance - Boulder, CO
★★★★★
I had a probllem with back taxes, I owed alot of money to the IRS, over 500K, and Beatriz helped me work out a plan to make very small payments monthly, and discharge the rest after 10 years of payments. She was with me throughout this stressful time and saved me from losing my house and my business.
Leo's Property Maintenance & Landscape - Longmont, CO